JavaScript面向对象之——继承【原】 本列子参照JavaScript核心技术一书略作修改,JS中继承还远不止于此,本博只略作讲解 JS-Code//<![CDATA //基类 function tune(title,type,test) { this.title = title; this.type = type; this.getTitle = function(){ return "Song: " + this.title +" Type:" + this.type; } } //派生类 function artist_tune(title,type,artist,test) { this.artist = artist; this.toString("Artist is"+artist); tune.call(this,title,artist);//call继承需列出参数// tune.apply(this,arguments);//apply直接使用参数列表,不包含最后一个参数,也就是说title,type,artist,test只取前三个参数 this.toString = function(){ return "Artist :"+this.artist+" "+this.getTitle();//调用继承基类的方法 } } // artist_tune.prototype = new tune(); var song = new artist_tune("I want to hold your hand ","rock","Beatles","test"); alert(song.toString()); //]>